Perceiving that the Seventh Legion, which had formed up near at hand, was also harassed by the enemy, Caesar instructed the tribunes to close the legions gradually together, and then, wheeling,1 to advance against the enemy. This was done; and as one soldier supported another, and they did not fear that their rear would be surrounded by the enemy, they began to resist more boldly and to fight more bravely. Meanwhile the soldiers of the two legions which had acted as baggage-guard at the rear of the column heard news of the action. Pressing on with all speed, they became visibile to the enemy on the crest of the hill; and Titus Labienus, having taken possession of the enemy's camp, and observed from the higher ground what was going forward in our own camp, sent the Tenth Legion to support our troops. When these learnt from the flight of the cavalry and sutlers the state of affairs, and the grave danger in which the camp, the legions, and the commander-in-chief were placed, they spared not a tittle of their speed.